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Main Authors: Machado, Erika M. Herrera, Andersen, Jakob L., Fagerberg, Rolf, Flamm, Christoph, Merkle, Daniel, Stadler, Peter F.
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2509.01504
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author Machado, Erika M. Herrera
Andersen, Jakob L.
Fagerberg, Rolf
Flamm, Christoph
Merkle, Daniel
Stadler, Peter F.
author_facet Machado, Erika M. Herrera
Andersen, Jakob L.
Fagerberg, Rolf
Flamm, Christoph
Merkle, Daniel
Stadler, Peter F.
contents The MØD computational framework implements rule-based generative chemistries as explicit transformations of graphs representing chemical structural formulae. Here, we expand MØD by a stochastic simulation module that simulates the time evolution of species concentrations using Gillespie's well-known stochastic simulation algorithm (SSA). This module distinguishes itself among competing implementations of rule-based stochastic simulation engines by its flexible network expansion mechanism and its functionality for defining custom reaction rate functions. It enables direct sampling from actual reactions instead of rules. We present methodology and implementation details followed by examples which demonstrate the capabilities of the stochastic simulation engine.
format Preprint
id arxiv_https___arxiv_org_abs_2509_01504
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Rule-Based Gillespie Simulation of Chemical Systems
Machado, Erika M. Herrera
Andersen, Jakob L.
Fagerberg, Rolf
Flamm, Christoph
Merkle, Daniel
Stadler, Peter F.
Molecular Networks
Chemical Physics
The MØD computational framework implements rule-based generative chemistries as explicit transformations of graphs representing chemical structural formulae. Here, we expand MØD by a stochastic simulation module that simulates the time evolution of species concentrations using Gillespie's well-known stochastic simulation algorithm (SSA). This module distinguishes itself among competing implementations of rule-based stochastic simulation engines by its flexible network expansion mechanism and its functionality for defining custom reaction rate functions. It enables direct sampling from actual reactions instead of rules. We present methodology and implementation details followed by examples which demonstrate the capabilities of the stochastic simulation engine.
title Rule-Based Gillespie Simulation of Chemical Systems
topic Molecular Networks
Chemical Physics
url https://arxiv.org/abs/2509.01504